AU737361B2 - Timing synchronization in a receiver employing orthogonal frequency division multiplexing - Google Patents

Timing synchronization in a receiver employing orthogonal frequency division multiplexing Download PDF

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Publication number
AU737361B2
AU737361B2 AU39916/97A AU3991697A AU737361B2 AU 737361 B2 AU737361 B2 AU 737361B2 AU 39916/97 A AU39916/97 A AU 39916/97A AU 3991697 A AU3991697 A AU 3991697A AU 737361 B2 AU737361 B2 AU 737361B2
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AU
Australia
Prior art keywords
interval
output signal
block
stream
dispersion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU39916/97A
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English (en)
Other versions
AU3991697A (en
Inventor
Anthony Peter John Claydon
David Huw Davies
Jonathan Parker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Discovision Associates
Original Assignee
Discovision Associates
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Discovision Associates filed Critical Discovision Associates
Publication of AU3991697A publication Critical patent/AU3991697A/en
Application granted granted Critical
Publication of AU737361B2 publication Critical patent/AU737361B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H04L25/0214—Channel estimation of impulse response of a single coefficient
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2676—Blind, i.e. without using known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals
    • H04L5/026—Multiplexing of multicarrier modulation signals using code division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Television Systems (AREA)
AU39916/97A 1996-10-31 1997-10-03 Timing synchronization in a receiver employing orthogonal frequency division multiplexing Ceased AU737361B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9622728.5A GB9622728D0 (en) 1996-10-31 1996-10-31 Timing synchronization in a reciever employing orthogonal frequency division mutiplexing
GB9622728 1996-10-31

Publications (2)

Publication Number Publication Date
AU3991697A AU3991697A (en) 1998-05-07
AU737361B2 true AU737361B2 (en) 2001-08-16

Family

ID=10802265

Family Applications (1)

Application Number Title Priority Date Filing Date
AU39916/97A Ceased AU737361B2 (en) 1996-10-31 1997-10-03 Timing synchronization in a receiver employing orthogonal frequency division multiplexing

Country Status (13)

Country Link
EP (1) EP0840485B1 (fr)
JP (1) JP4142758B2 (fr)
KR (1) KR19980033375A (fr)
CN (1) CN1181673A (fr)
AR (2) AR008906A1 (fr)
AT (1) ATE196218T1 (fr)
AU (1) AU737361B2 (fr)
CA (1) CA2199111A1 (fr)
DE (1) DE69703016T2 (fr)
GB (2) GB9622728D0 (fr)
ID (1) ID19373A (fr)
IL (1) IL122020A (fr)
SG (1) SG55399A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100234329B1 (ko) * 1997-09-30 1999-12-15 윤종용 Ofdm 시스템 수신기의 fft 윈도우 위치 복원장치 및 그 방법_
US6167351A (en) * 1998-03-24 2000-12-26 Tektronix, Inc. Period determination of a periodic signal
JP3850452B2 (ja) * 1998-08-24 2006-11-29 三菱電機株式会社 信号復調装置、およびこの信号復調装置における受信制御方法
KR100510637B1 (ko) * 1998-11-07 2006-02-28 엘지전자 주식회사 Dvb 시스템의 동기 검출 장치
GB2353680A (en) 1999-08-27 2001-02-28 Mitsubishi Electric Inf Tech OFDM frame synchronisation
US6967936B1 (en) * 2000-02-11 2005-11-22 Lucent Technologies Inc. Uplink timing synchronization and access control for a multi-access wireless communication system
EP1128592A3 (fr) * 2000-02-23 2003-09-17 NTT DoCoMo, Inc. AMRC multiporteuse et estimation de canal
US6920182B2 (en) 2001-01-09 2005-07-19 Microtune (Texas), L.P. Delta-sigma modulator system and method
KR100425297B1 (ko) * 2001-06-11 2004-03-30 삼성전자주식회사 효율적인 심볼 타이밍 옵셋을 추정하는 ｏｆｄｍ 수신시스템 및 그 방법
CN100379212C (zh) * 2002-01-23 2008-04-02 华为技术有限公司 一种查找表电路的实现方法
US7623599B2 (en) * 2005-11-21 2009-11-24 Freescale Semiconductor, Inc. Blind bandwidth detection for a sample stream
JP2008005389A (ja) * 2006-06-26 2008-01-10 Hitachi Ltd 通信方法および通信装置
US8284825B2 (en) * 2008-06-06 2012-10-09 Maxim Integrated Products, Inc. Blind channel quality estimator
CN102687478A (zh) 2009-10-30 2012-09-19 班戈大学 光频分多路复用传输系统中的同步方法
CN101902677B (zh) * 2010-06-23 2015-01-28 中兴通讯股份有限公司 音频检测装置及方法
KR101121086B1 (ko) * 2010-11-10 2012-03-16 충남대학교산학협력단 유니크 워드 기반 주파수 영역 등화기 기반 단일반송파 방식을 위한 채널 추정 기법
GB2489922A (en) 2011-04-06 2012-10-17 Univ Bangor Synchronising optical OFDM signal with pattern of DC offset levels superimposed upon OFDM symbols
CN117826071B (zh) * 2024-03-06 2024-05-28 成都大公博创信息技术有限公司 基于中频触发实现多采集模块宽带校准的测向系统及方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608024A1 (fr) * 1993-01-20 1994-07-27 Laboratoires D'electronique Philips S.A.S. Système de transmission avec récupération de rythme
EP0730357A2 (fr) * 1995-03-01 1996-09-04 Telia Ab Synchronisation de fréquence et de trame pour MDFO

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2278257B (en) * 1993-05-05 1996-10-02 British Broadcasting Corp Receiving equipment for digital transmissions
DE69523365T2 (de) * 1994-05-09 2002-07-04 Victor Company Of Japan, Ltd. Sender und Empfänger für OFDM
EP0772332A3 (fr) * 1995-11-02 2000-10-11 British Broadcasting Corporation Synchronisation de signaux MDFO

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608024A1 (fr) * 1993-01-20 1994-07-27 Laboratoires D'electronique Philips S.A.S. Système de transmission avec récupération de rythme
US5559833A (en) * 1993-01-20 1996-09-24 U.S. Philips Corporation Transmission system comprising timing recovery
EP0730357A2 (fr) * 1995-03-01 1996-09-04 Telia Ab Synchronisation de fréquence et de trame pour MDFO

Also Published As

Publication number Publication date
DE69703016T2 (de) 2001-04-05
SG55399A1 (en) 1998-12-21
CN1181673A (zh) 1998-05-13
EP0840485A3 (fr) 1998-06-10
GB2318953A (en) 1998-05-06
AR008906A1 (es) 2000-02-23
EP0840485A2 (fr) 1998-05-06
IL122020A0 (en) 1998-03-10
GB9720550D0 (en) 1997-11-26
AU3991697A (en) 1998-05-07
ATE196218T1 (de) 2000-09-15
AR008910A1 (es) 2000-02-23
CA2199111A1 (fr) 1998-04-30
DE69703016D1 (de) 2000-10-12
GB9622728D0 (en) 1997-01-08
IL122020A (en) 2000-11-21
JP4142758B2 (ja) 2008-09-03
EP0840485B1 (fr) 2000-09-06
JPH10150428A (ja) 1998-06-02
KR19980033375A (ko) 1998-07-25
ID19373A (id) 1998-07-02

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FGA Letters patent sealed or granted (standard patent)
MK14 Patent ceased section 143(a) (annual fees not paid) or expired